KR20030032071A - Method for Bluetooth Data Processing using Data Compression - Google Patents

Abstract

PURPOSE: A method for processing Bluetooth data using data compression is provided to adopt a data compression function upon data transceiving between Bluetooth devices, so as to secure stable and fast data transmission performance. CONSTITUTION: A connection setup procedure of Bluetooth baseband, LMP(Link Manager Protocol) and L2CAP(Logical Link Control and Adaptation Protocol) is completed(301), and search of services is completed(302). Connection of RFCOMM(Radio Frequency Communication) is completed(303) and packets of transmission data are prepared(304). Whether to provide a compression function for the transmission data packets is decided(305). If so, the transmission data are compressed(306) and data are delivered to the RFCOMM(307) then transmitted through the L2CAP, LMP, baseband and air interface(308). And if the compression function is decided not to be provided in the step 305, transmission data are delivered to the RFCOMM intactly(307) and data are delivered through the L2CAP, LMP, baseband and air interface(308).

Description

Bluetooth data processing method using data compression {Method for Bluetooth Data Processing using Data Compression}

The present invention provides a Bluetooth data processing method using data compression to improve the physical transmission speed defined by the Bluetooth standard by providing a compression function in data transmission and reception of Bluetooth data, which is a short-range wireless communication standard, and a program for realizing the method. Its purpose is to provide a computer readable recording medium having recorded thereon.

Bluetooth is a technology that will open the network era of digital devices such as mobile phones, personal digital assistants (PDAs), personal computers (PCs), and televisions and set-top boxes, attracting attention as a key driver of new vitality in the information and communication market.

Bluetooth is a standard that can transmit and receive data at high speed without physical cable by using 2.4GHz frequency hopping method between various electronic devices within a short distance (10-100 meters). Currently, in order to transmit and receive data between mobile terminals or between a mobile terminal and a desktop personal computer (PC), a physical cable suitable for each mobile terminal standard must be connected, and a program corresponding thereto must be executed.

Infrared Data Association (IrDA) is also established as a short-range wireless communication standard. However, since the basic transmission method of the physical layer depends on infrared rays, it is spatially limited due to the property that should be guaranteed straightness. The disadvantage is that communication between electronic devices is possible.

In addition, although the initial profile application of Bluetooth was mainly overlapped with the application area of infrared communication, it is currently expanding the area to a large data transmission range within a wider range than the infrared communication. Therefore, it can be said that the application of infrared communication to this application is limited.

As Bluetooth becomes commercially available, wireless high-speed data between personal data assistants (PDAs), notebooks, desktop personal computers (PCs), printers, digital cameras, and other post-PCs with Bluetooth capabilities Transmission and reception are enabled, and complete wireless networking can be realized within a short distance.

Bluetooth is a short-range data transmission / reception protocol. The maximum speed that can be physically transmitted is 721 Kbit / sec.

However, when passing through protocol layers such as Host Controller Interface (HCI), Logical Link Control and Adaptation Protocol (L2CAP), and RFCOMM in the Bluetooth stack structure, the transmission speed is higher than this due to header processing and packet retransmission for each layer. Will be lowered.

In other words, Bluetooth has evolved beyond the application range overlapped with the initial infrared communication, so that the use of the Internet and the mass data transmission through the interworking with the local area network (LAN) of the existing wired environment are possible. As mentioned above in the situation where a large amount of high-speed wireless data transmission and reception is required, the transmission speed of the air interface is only 721 Kbit / sec (that is, the maximum data that can be transmitted per second is 721000 bits). Basically, there is a problem that cannot be achieved by the existing technology to improve the data transmission performance without improving the processing speed of the air interface.

The present invention has been proposed to solve the above problems, Bluetooth data processing using data compression that can ensure a more stable and faster data transmission performance by introducing a data compression function when transmitting and receiving data between Bluetooth devices It is an object of the present invention to provide a computer-readable recording medium storing a method and a program for realizing the method.

1 is an exemplary configuration diagram of a conventional Bluetooth data processing device.

2 is an exemplary configuration diagram of a Bluetooth data processing device to which the present invention is applied.

Figure 3 is a flow chart of an embodiment of the Bluetooth data processing method bark transmission process using data compression according to the present invention.

Figure 4 is a flow diagram of an embodiment of a receiving process of the Bluetooth data processing method using data compression according to the present invention.

* Explanation of symbols for the main parts of the drawings

210: transmitting unit 211: profile application

212: SDP 213: data compression / decompression

214: RFCOMM 215: L2CAP

216: LMP 217: Baseband

220: receiver 221: profile application

222 data compression / decompression 223 SDP

224: RFCOMM 225: L2CAP

226LMP 227Baseband

The method of the present invention for achieving the above object, in the Bluetooth data processing method, the Bluetooth baseband (Baseband), LMP (LMP), L2CAP (L2CAP) for data transmission and the connection of each link The first step to complete; A second step of identifying a service by searching for a service provided by the other party; A third step of establishing a connection of RFCOMM by the identified service and preparing a packet of transmission data; A fourth step of determining whether to provide a compression function for the transmission data packet; As a result of the determination in the fourth step, if the compression function is provided, the transmission data is compressed to transmit the data to RFCOMM, L2CAP, LMP, baseband, and air interface. A fifth step of transmitting data through the Air Interface; And as a result of the determination of the fourth step, if the compression function is not provided, the transmission data is transmitted to RFCOMM, and L2CAP, LMP, baseband, and air interface And a sixth step of transmitting data through the < RTI ID = 0.0 >

In addition, the method of the present invention comprises a seventh step of initializing the baseband (LMP), L2CAP (L2CAP) of Bluetooth for data transmission, and completes the connection of each link; An eighth step of identifying a service by searching for a service provided by the other party; The ninth of establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, Baseband, and Air Interface. step; A tenth step of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; An eleventh step of decompressing the received data and delivering the received data to the profile application if the compression function is provided as a result of the tenth step; And a twelfth step of delivering the received data to the profile application program without the process of decompressing the received data if the data is not provided with the compression function as a result of the determination of the tenth step.

In addition, another method of the present invention, in the Bluetooth data processing method, the Bluetooth baseband (Baseband), LMP (LMP), L2CAP (L2CAP) for data transmission to initialize and complete the connection of each link First step; A second step of identifying a service by searching for a service provided by the other party; Establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, baseband, and air interface; step; A fourth step of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; A fifth step of decompressing the received data and delivering the received data to the profile application if the compression function is provided as the result of the fourth step; And a sixth step of transmitting the received data to the profile application program without decompressing the received data if the data is not provided with the compression function as a result of the determination in the fourth step.

On the other hand, the present invention, Bluetooth baseband, LMP (LMP), L2CAP (L2CAP) of Bluetooth for data transmission in the Bluetooth data processing apparatus having a processor for transmitting Bluetooth data, A first function of completing the connection of each link; A second function of identifying a service by searching for a service provided by the other party; A third function of establishing a connection of RFCOMM by the confirmed service and preparing a packet of transmission data; A fourth function of determining whether to provide a compression function for the transmission data packet; As a result of the determination of the fourth function, if the compression function is provided, the transmission data is compressed to transmit the data to RFCOMM, L2CAP, LMP, baseband, and air interface. A fifth function of transmitting data via AirInterface; And as a result of the determination of the fourth function, if the compression function is not provided, the transmission data is transmitted to RFCOMM, and L2CAP, LMP, baseband, and air interface The present invention provides a computer-readable recording medium having recorded thereon a program for realizing a sixth function of transferring data.

In addition, the present invention, the Bluetooth baseband (Baseband), LMP (LMP), L2CAP (L2CAP) for the data reception for initializing, and completing the connection of each link; An eighth function of identifying a service by searching for a service provided by the other party; The ninth of establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, Baseband, and Air Interface. function; A tenth function of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; An eleventh function that decompresses the received data and delivers the received data to the profile application if the compression function is the data provided as a result of the determination of the tenth function; And as a result of the determination of the tenth function, if the data is not provided with the compression function, a program for further realizing the twelfth function of delivering the received data to the profile application program without the process of decompressing the received data can be read by a computer. Provide a recording medium.

In addition, the present invention, Bluetooth baseband (LMP), L2CAP (L2CAP) of Bluetooth for data transmission is initialized in a Bluetooth data processing apparatus having a processor for receiving Bluetooth data, A first function of completing the connection of each link; A second function of identifying a service by searching for a service provided by the other party; Establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, baseband, and air interface; function; A fourth function of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; A fifth function of decompressing the received data and delivering the received data to the profile application if the compression function provides the data as a result of the determination of the fourth function; And as a result of the determination of the fourth function, if the data is not provided with the compression function, the program for realizing the sixth function for delivering the received data to the profile application program without decompressing the received data can be read by a computer. Provide a record carrier.

That is, the present invention relates to Bluetooth data transmission and reception, which is a short-range wireless communication standard, and proposes a method for improving a transmission speed defined by the Bluetooth standard by providing a compression function during data transmission.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of an existing Bluetooth data processing device, and illustrates a data communication procedure and protocol configuration between profile applications.

As shown in FIG. 1, the protocol configuration of the Bluetooth data processing apparatus has the same configuration as that of the transmitter 110 and the receiver 120.

The Bluetooth protocol configuration is profile application 111, 121, SDP 112, 122, RFCOMM 113, 123, L2CAP 114, 124, LMP. ) 115, 125, and basebands 116, 126.

First, the receiver of the Bluetooth processing apparatus will be described.

The baseband 116 performs a paging procedure for synchronizing transmission hopping frequencies and clocks of different devices, and an LMP 115 provides a link establishment, link generation, L2CAP (Logical Link Control and Adaptation Protocol) 114 delivers packets to the Host Controller Interface (HCI), providing security in terms of authentication and encryption through exchange, inspection, and packet size control and negotiation. In a system where L is not present, the L2CAP 114 forwards the packets directly to the LMP 115.

RFCOMM 113 is for reliable transmission of byte streams sequentially and is dependent on Bluetooth baseband 116. RFCOMM 113 is " GSM TS 07.10 (Global System for Mobile communication Terminal). Server 07.10), which serves as a physical serial cable.

On the other hand, SDP (Service Discovery Database) 112 defines the characteristics of the service to establish a connection path between two or more Bluetooth devices, to provide a service supported by RFCOMM (113) Bluetooth has an entry that provides information about how to connect to SDP 112 via RFCOMM 113, 123.

In the service through RFCOMM 113, the minimum information necessary for connection is a service name for identifying a service type and a channel number for transmission data.

In addition, by querying the SDP 112 record, the device can find out all the information needed for the connection to provide the service via RFCOMM 113.

Meanwhile, the baseband 126 of the receiver 120 receives a data packet received through an air interface, and an upper protocol stack L2CAP 124 through a host controller interface (HCI). Will be delivered.

L2CAP (L2CAP) 124 checks whether the link information and the packet error, and then forwards to RFCOMM (123), the upper protocol stack, RFCOMM (123) receives this packet and the final The profile application 121 is passed to.

The LMP 125 and the SDP 122 perform the same functions as the LMP 115 and the SDP 112 of the transmitter 110.

Bluetooth operation includes a function of searching for a Bluetooth enabled device in a short distance (called “Inquiry”), a link connection function, and a function of searching for a service provided by a Bluetooth device (Service Discovery Protocol). In addition, RFCOMM 113 and 123, which are cable replacement functions, are added. Here, Bluetooth enabled devices refer to devices and applications that use Bluetooth access, serial ports, wireless phones, headsets, dial connections, LAN access, file transfers, data synchronization, service discovery access profiles, and the like. That is, devices and applications that communicate information wirelessly using Bluetooth.

Although the configuration of the protocol stack used for each provision profile may be slightly different, the profile for mass data transmission is transmitting and receiving data through RFCOMM 113 and 123.

The Bluetooth data processing apparatus shown in FIG. 1 is equipped with a Bluetooth module and has a Bluetooth protocol stack and a profile implementation program to enable various profile applications 111 and 121 through the Bluetooth module.

2 is an exemplary configuration diagram of a Bluetooth data processing apparatus to which the present invention is applied, and illustrates a communication procedure and protocol configuration using a compression function between profile application programs.

As shown in FIG. 2, the Bluetooth data processing apparatus compresses the data output from the profile application programs 211 and 221 and the profile application programs 211 and 221 for executing an application used for Bluetooth, or receives the reception unit 220. Data compression / decompression (213, 222) for decompressing the compressed data transmitted from the data transmission), and data output from the data compression / decompression (213, 222) are sequentially and reliably transmitted to the next layer or data transmitted from another layer. RFCOMM (214, 224) for transmitting the data to the compression / decompression (213, 222), RFCOMM (214, 224) outputs the data output from the baseband (217, 227) Or the L2CAP (215, 225) and the L2CAP (215, 225) for transmitting the data transmitted from the baseband (217, 227) to RFCOMM (217, 227) The received data through the paging procedure Baseband (217, 227) for transmitting to the 220 or the data transmitted from the receiving unit 220 to the L2CAP (215, 225), link establishment, link generation, exchange, inspection between devices And LMP (216, 226) for security in terms of authentication and encryption through packet size control and negotiation, and SDP for defining connection characteristics between two or more Bluetooth devices by defining characteristics of services. (212, 223).

The device shown in FIG. 2 is identical to the configuration shown in FIG. 1, and each module, protocol stack, and profile are all identical. However, there is a difference that data compression / decompression layers 212 and 222 exist between RFCOMMs 214 and 224 and profile applications 211 and 221.

That is, while conventionally, the data received from the profile application programs 211 and 221 is transferred to the RFCOMMs 214 and 224 as it is, but in the present invention, the RFCOMMs 214 and 224 and the profile application program ( A data compression / decompression layer is provided between 211 and 221 to transmit data.

For example, through data compression / decompression (212, 222), if the data is assumed to be compressed at 50% and compared, when attempting to transmit 1000 bytes, 1000 bytes are conventionally referred to as RFCOMM (214). 224), the lower protocol layer fragments it into several packets (for example, 1000 bytes / 127 bytes = 8 packets), and then delivers the packet to the other party through the final air interface. Only fewer packets (e.g. 500 bytes / 127 bytes = 4 packets) need to be transmitted.

Meanwhile, the compression / decompression method used for compressing / decompressing the data here may use any of the known compression and decompression methods.

3 is a flowchart illustrating a transmission process of a Bluetooth data processing method using data compression according to the present invention.

As shown in FIG. 3, a data communication method between Bluetooth application profiles using data compression according to an embodiment of the present invention may be performed by first establishing a connection setup procedure of a baseband, an LMP, and an L2CAP of a Bluetooth. Complete (301), and complete the service search (302).

Next, the connection of RFCOMM is completed (303), and a packet of transmission data is prepared (304).

When a packet of transmission data is prepared, it is determined whether to provide a compression function for the transmission data packet (305).

As a result of the determination, if the compression function is provided, the transmission data is compressed (306), the data is transmitted to RFCOMM (307), L2CAP, LMP, LMP, baseband and Data is transmitted through the air interface (308).

As a result of the determination, if the compression function is not provided, the transmission data is directly transmitted to RFCOMM (307), L2CAP (L2CAP), LMP (LMP), baseband (Baseband) and air interface (Air Interface). Data is transmitted via 308.

When transmitting data, the module of the transmitter performs the following operations.

After the power is applied, the transmitter Bluetooth module initializes the baseband, LMP and HCI for data transmission, finds the device through the Bluetooth device search function, and initializes the link terminal through the L2CAP. And complete the connection.

After checking the service provided by the other party through the service search, the RFCOMM connection is established. At this time, it is determined whether the other party provides the compression / decompression function.

Run the Profiles application. If there is data to be transmitted, the compression layer compresses the data before delivering it to RFCOMM, and then delivers the compressed data to RFCOMM.

The compressed data transmitted to RFCOMM is transmitted to the counterpart through L2CAP, HCI, LMP, Baseband, and Air Interface.

That is, the flowchart shown in FIG. 3 is a data transmission method, and as a whole, a process of completing Bluetooth baseband (LMP), HCI, L2CAP setup, driving a service, compressing data, and transmitting data It is composed.

4 is a flowchart illustrating a reception process of a Bluetooth data processing method using data compression according to the present invention.

As shown in Figure 4, the data receiving method between the Bluetooth application profile using the data compression according to the present invention, first complete the Bluetooth baseband (LMP), L2CAP (L2CAP) connection setup procedure 401, the service search is completed (402).

Next, the connection with RFCOMM is completed (403), and data is received through L2CAP, LMP, baseband, and air interface (404). ).

When receiving data while waiting for reception, it is determined whether the received data is data provided with a compression function (405).

As a result of the determination, if the compression function data is provided, the received data is decompressed (406), and the received data is transmitted to the profile application (407).

As a result of the determination, if the data is not provided with the compression function, the received data is transmitted to the profile application program without decompressing the received data (step 407).

In other words, the receiving method as a whole, the process of completing the Bluetooth baseband (LMP), HCI, L2CAP setup, running the service, decompressing the data, the decompressed data to the upper profile application It consists of a process of delivery.

When receiving data, the module of the receiver performs the following operations.

After the power is applied, the transmitter Bluetooth module initializes the baseband, LMP and HCI for data transmission, finds the device through the Bluetooth device search function, and then uses the L2CAP. Complete the initialization and connection.

After checking the service provided by the other party through the service search, the RFCOMM connection is established. At this time, it is determined whether the other party provides the compression / decompression function.

Run the Profiles application. If there is data received through RFCOMM, the data is first decompressed before being delivered to the profile application program and then transferred to the profile application program.

On the other hand, there are two ways to know whether the other party provides a compression function as follows.

The first is to initialize your Bluetooth device. At this time, the MAC address of the device may be obtained.

In addition, the Bluetooth device search function searches for devices existing in a short distance. If there is a device that is identical to its own MAC address system among the discovered devices, and it is to be connected to the device, it is determined that the compression function is provided by default.

That is, it is a function corresponding to the products of the company.

Secondly, it initializes its own Bluetooth device. At this point, you can get the MAC address of the device.

In addition, the Bluetooth device search function searches for devices existing in a short distance. In addition, when a device that has a MAC address of another company is connected to the found device, it is determined whether the compression function is provided through SDP.

In other words, the second method is a method in which a third-party product and its product can be connected.

Through this connection and transmission and reception procedure, data transmission and reception of 721 Kbit / sec or more is possible between profile application programs.

According to the present invention, by compressing and transmitting data in a situation where a large amount of data traffic is required, the amount of data packets actually transmitted and received at the physical layer can be reduced, and the number of retransmissions caused by packet errors can be reduced, It is effective in stably providing a speed of 721 Kbit / sec or more, which is the transmission limit speed.

In addition, in the Bluetooth profile application to solve the technical problem to be achieved by the present invention, by increasing the amount of data that can be transmitted per second by adding a data compression function between the transmission and reception as a result, compared to the existing Bluetooth profile application using the air interface Relatively high transmission performance can be guaranteed.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention can expect high speed data performance over the transmission rate defined in the Bluetooth standard without adding any hardware between Bluetooth devices when a large amount of data is transmitted, and can prevent data loss through compression. There is an effect that can ensure the data transmission performance.

Claims (12)

In the Bluetooth data processing method, A first step of initializing baseband, LMP, and L2CAP of Bluetooth for data transmission and completing connection of each link; A second step of identifying a service by searching for a service provided by the other party; A third step of establishing a connection of RFCOMM by the identified service and preparing a packet of transmission data; A fourth step of determining whether to provide a compression function for the transmission data packet; As a result of the determination in the fourth step, if the compression function is provided, the transmission data is compressed to transmit the data to RFCOMM, L2CAP, LMP, baseband, and air interface. A fifth step of transmitting data through the Air Interface; And As a result of the determination of the fourth step, if the compression function is not provided, the transmission data is transmitted to RFCOMM, and L2CAP, LMP, baseband, and air interface are provided. 6th step of transmitting data via Bluetooth data processing method comprising a. The method of claim 1, A seventh step of initializing baseband, LMP, and L2CAP of Bluetooth for data transmission and completing connection of each link; An eighth step of identifying a service by searching for a service provided by the other party; The ninth of establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, Baseband, and Air Interface. step; A tenth step of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; An eleventh step of decompressing the received data and delivering the received data to the profile application if the compression function is provided as a result of the tenth step; And As a result of the determination of the tenth step, if the data is not provided with a compression function, a twelfth step of delivering the received data to the profile application program without decompressing the received data. Bluetooth data processing method further comprising. The method of claim 2, The process of determining whether to provide the compression function of the fourth step, A thirteenth step of acquiring a MAC address of the Bluetooth device in the initialization process of the first step; A fourteenth step of searching for a Bluetooth device, the device having the same addressing system as compared with the MAC address among the found devices, and providing a compression function as a default when connecting to the device; And Searching for a Bluetooth device, the device has a different address system compared to the MAC (MAC) address of the searched device, if you want to connect to the device to check the SDP (Service Discovery Database) to compress the function The fifteenth step of providing a compression function Bluetooth data processing method comprising a. In the Bluetooth data processing method, A first step of initializing baseband, LMP, and L2CAP of Bluetooth for data reception and completing connection of each link; A second step of identifying a service by searching for a service provided by the other party; Establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, baseband, and air interface; step; A fourth step of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; A fifth step of decompressing the received data and delivering the received data to the profile application if the compression function is provided as the result of the fourth step; And As a result of the determination of the fourth step, if the data is not provided with the compression function, the sixth step of transmitting the received data to the profile application program without decompressing the received data. Bluetooth data processing method comprising a. The method according to any one of claims 1 to 4, The Bluetooth is, And a function of searching for a Bluetooth-enabled device in a short distance, a link connection function, and a function of searching for a service provided by the Bluetooth device. The method according to any one of claims 1 to 4, The RFCOMM, Depends on the Bluetooth baseband as a sequential and reliable transmission of byte streams, based on "GSM TS 07.10 (Global System for Mobile communication Terminal Server 07.10)", and serves as one physical serial cable. Bluetooth data processing method. The method according to any one of claims 1 to 4, The L2CAP is, Checking whether the link information and the packet error, Bluetooth data processing method characterized in that the transfer to the RF protocol (RFCOMM). The method according to any one of claims 1 to 4, The SDP, Defines the characteristics of the services to establish a connection path between two or more Bluetooth devices, and provides information on how to connect through the RFCOMM to provide services supported by the RFCOMM. Bluetooth data processing method having an entry. The method according to any one of claims 1 to 4, The base band, Bluetooth data processing method characterized in that to perform a paging procedure for synchronizing the transmission hopping frequency and clock of different devices. In a Bluetooth data processing apparatus having a processor for transmitting Bluetooth data, A first function of initializing baseband, LMP, and L2CAP of Bluetooth for data transmission, and completing connection of each link; A second function of identifying a service by searching for a service provided by the other party; A third function of establishing a connection of RFCOMM by the confirmed service and preparing a packet of transmission data; A fourth function of determining whether to provide a compression function for the transmission data packet; As a result of the determination of the fourth function, if the compression function is provided, the transmission data is compressed to transmit the data to RFCOMM, L2CAP, LMP, baseband, and air interface. A fifth function of transmitting data via the Air Interface; And As a result of the determination of the fourth function, if the compression function is not provided, the transmission data is transmitted to RFCOMM, and L2CAP, LMP, Baseband, and Air Interface are provided. Sixth function of transmitting data via A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 10, A seventh function of initializing baseband, LMP, and L2CAP of Bluetooth for data reception and completing connection of each link; An eighth function of identifying a service by searching for a service provided by the other party; The ninth of establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, Baseband, and Air Interface. function; A tenth function of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; An eleventh function that decompresses the received data and delivers the received data to the profile application if the compression function is the data provided as a result of the determination of the tenth function; And As a result of the determination of the tenth function, if the data is not provided with the compression function, the twelfth function of delivering the received data to the profile application program without decompressing the received data. A computer-readable recording medium that records a program for further realization. In a Bluetooth data processing apparatus having a processor for receiving Bluetooth data, A first function of initializing baseband, LMP, and L2CAP of Bluetooth for data transmission, and completing connection of each link; A second function of identifying a service by searching for a service provided by the other party; Establishing a connection of RFCOMM by the identified service and receiving data through L2CAP, LMP, baseband, and air interface; function; A fourth function of determining whether the received data is data provided with a compression function while receiving data while waiting for reception; A fifth function of decompressing the received data and delivering the received data to the profile application if the compression function provides the data as a result of the determination of the fourth function; And As a result of the determination of the fourth function, if the data is not provided with the compression function, the sixth function of transferring the received data to the profile application program without decompressing the received data. A computer-readable recording medium having recorded thereon a program for realizing this.